In Asia the job-scene is so-so, salaries are low for dispatchers, especially ones without experience.
Your profile says you're in/from India so you're going to be competing with all of the Kingfisher guys who got dumped a couple of months ago, they're all scrambling for every opening East and West of there.
As for the rest of Asia, SE Asian airlines tend to hire locals although there are a few that hire non-locally. You'll need to research it but try Tiger, Jetstar, Airasia and some of the new start-ups.
Mainland China, jobs are rarely advertised and are exclusively for those with a lot of experience and that usually means management experience also. Salaries are low even for those roles.